I'm not familiar with that particular printer but I'd guess that the IP address has changed when you swapped the hub.

I found the following online which may be helpful, let us know if this works.

Q: Does anybody know how to change the WiFI settings (SSID and password of the host network) for HP Laserjet P1102W? This printer comes with an integrated Wifi adaptor and detects the initial wifi settings automatically during installation. Last week I changed my Wifi router and couldn't find a way to reconfigure my printer for it.

A: In the install directory for the 1100 series there is an executable that takes you through the reconfiguration of the P1102w wireless settings. In Win 7 in (C:\Program Files\HP\HP LaserJet P1100 Series) The executable is (wificonfig.exe) Run this with the printer next to your laptop or desktop with the printer on and a USB cable available but not connected, and follow the instructions given by the program. This takes you through the wifi setup without the tedium of uninstalling and reinstalling anything.

I'm not familiar with that particular printer but I'd guess that the IP address has changed when you swapped the hub.

I found the following online which may be helpful, let us know if this works.

Q: Does anybody know how to change the WiFI settings (SSID and password of the host network) for HP Laserjet P1102W? This printer comes with an integrated Wifi adaptor and detects the initial wifi settings automatically during installation. Last week I changed my Wifi router and couldn't find a way to reconfigure my printer for it.

A: In the install directory for the 1100 series there is an executable that takes you through the reconfiguration of the P1102w wireless settings. In Win 7 in (C:\Program Files\HP\HP LaserJet P1100 Series) The executable is (wificonfig.exe) Run this with the printer next to your laptop or desktop with the printer on and a USB cable available but not connected, and follow the instructions given by the program. This takes you through the wifi setup without the tedium of uninstalling and reinstalling anything.